Just starting at $10.00, one i-Cuff viewfinder eyecup, a Hoodman HD450 and a Petrol PA1018, all to fit a Canon c100 (not included).

Camcorder viewfinder / LCD screen covers -- Hoodman, Petrol and i-Cuff (http://www.ebay.com/itm/201916023498?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649)